Climatic data Sardinia, Cagliari: Average temperatures in CÂ°, location Cagliari: Januar - 9,9 CÂ° February - 10,2 CÂ° March - 11,6 CÂ° April - 13,8 CÂ° May - 17,3 CÂ° June - 21,3 CÂ° July - 24,2 CÂ° August - 24,3 CÂ° September - 21,8 CÂ° October - 18,2 CÂ° November - 13,6 CÂ° December - 16,4 CÂ° Annual average - 16,4 CÂ°.bsolute maximum temperatures in CÂ°, location Cagliari: Januar - 22,0 CÂ° February - 21,3 CÂ° March - 27,4 CÂ° April - 28,0 CÂ° May - 35,0 CÂ° June - 38,6 CÂ° July - 42,0 CÂ° August - 38,5 CÂ° September - 39,1 CÂ° October - 30,9 CÂ° November - 27,2 CÂ° December - 24,2 CÂ° Yearly maximum value - 42,0 CÂ°.
Though Darwin proposed natural selection as the primary evolutionary mechanism, he accepted other auxiliary mechanisms too. The most important of these was the transmission of acquired characteristics (those acquired by use-disuse) first proposed by Lamarck in the early 1800s..
10. Explain what Darwin meant by the principle of common descent and descent with modification. 11. Explain what evidence convinced Darwin that species change over time. 12. State, in their own words, three inferences Darwin made from his observations, which led him to propose natural selection as mechanism for evolutionary change. 13.